More than 10% of rodent species (244/2,220) are zoonotic hosts, carrying 85 unique zoonotic diseases. And although there are fewer species of primates overall, a greater proportion of primates (77/365, 21%) are zoonotic hosts.

Mapping overlapping geographic ranges of mammal species recognized to carry one or more zoonotic diseases highlights regions of high and low zoonotic host diversity arising from particular clades. Mammal zoonotic host richness is depicted by color for carnivores, bats (Chiroptera), primates, rodents, shrews and moles (Soricomorpha), and the hoofed mammals (Ungulates, which combine the orders Perissodactyla and Artiodactyla and exclude domesticated species). Credit: Drew Kramer